The reactions of bis(2-pyridylthio)methane with MeZn and Zn[N(SiMe)] afford [Bptm]ZnMe and [Bptm]ZnN(SiMe), thereby providing access to a variety of other [Bptm]ZnX derivatives, including the zinc hydride complex [Bptm]ZnH, which serves as a catalyst for the reduction of CO and other carbonyl compounds hydrosilylation and hydroboration.
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http://dx.doi.org/10.1039/d1cc06963b | DOI Listing |
Chem Sci
December 2024
MOE Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, Department of Polymer Science & Engineering, School of Chemistry & Chemical Engineering, Nanjing University Nanjing 210023 China
As compared to oxidative phototherapy, studies on reactive reductive species-participating photodynamic therapy (PDT) are rare. Porphyrins are typical photosensitizers restricted by the oxygen level, but efficacy and selectivity are always incompatible in PDT. Herein, we report that phlorins are ideal hydride (H) donors and explore a water-soluble triphenylphosphonium-modified zinc-coordinated porphyrin (ZnPor) for photogeneration of zinc-cored phlorin (ZnPhl).
View Article and Find Full Text PDFScience
November 2024
Institute for Decarbonization Materials, University of California, Berkeley, CA 94720, USA.
Carbon capture can mitigate point-source carbon dioxide (CO) emissions, but hurdles remain that impede the widespread adoption of amine-based technologies. Capturing CO at temperatures closer to those of many industrial exhaust streams (>200°C) is of interest, although metal oxide absorbents that operate at these temperatures typically exhibit sluggish CO absorption kinetics and instability to cycling. Here, we report a porous metal-organic framework featuring terminal zinc hydride sites that reversibly bind CO at temperatures above 200°C-conditions that are unprecedented for intrinsically porous materials.
View Article and Find Full Text PDFNat Commun
September 2024
School of Materials and Energy, University of Electronic Science and Technology of China, 611731, Chengdu, P. R. China.
Angew Chem Int Ed Engl
November 2024
Department of Chemistry and Centre for Pulse EPR spectroscopy (PEPR), Imperial College London, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK.
Reaction of a molecular zinc-hydride [{(ArNCMe)CH}ZnH] (Ar=2,6-di-isopropylphenyl) with 0.5 equiv. of [Ni(CO)Cp] led to the isolation of a nickel-zinc hydride complex containing a bridging 3-centre,2-electron Ni-H-Zn interaction.
View Article and Find Full Text PDFAdv Sci (Weinh)
August 2024
School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
The transition metal-catalyzed multi-component cross-electrophile sulfonylation, which incorporates SO as a linker within organic frameworks, has proven to be a powerful, efficient, and cost-effective means of synthesizing challenging alkyl-alkyl sulfones. Transition metal catalysts play a crucial role in this method by transferring electrons from reductants to electrophilic organohalides, thereby causing undesirable side reactions such as homocoupling, protodehalogenation, β-hydride elimination, etc. It is worth noting that tertiary alkyl halides have rarely been demonstrated to be compatible with current methods owing to various undesired side reactions.
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